DS3181 Datasheet, PDF (273/400 Pages) Maxim Integrated Products – Single/Dual/Triple/Quad ATM/Packet PHYs with Built-In LIU

DS3181/DS3182/DS3183/DS3184
Register Name:
Register Description:
Register Address:
Bit #
15
Name
—
Default
0
Bit #
7
Name
—
Default
0
TT.RTIAR
Trail Trace Receive Identifier Address Register
(0,2,4,6)F2h
14
13
12
11
10
—
Reserved Reserved ETIA3
ETIA2
0
0
0
0
0
6
5
4
3
2
—
Reserved Reserved RTIA3
RTIA2
0
0
0
0
0
9
ETIA1
0
1
RTIA1
0
8
ETIA0
0
0
RTIA0
0
Bits 11 to 8: Expected Trail Trace Identifier Address (ETIA[3:0]) – These four bits indicate the expected trail
trace identifier byte to be read/written by the next memory access. Address 0h indicates the first byte of the
expected trail trace identifier. Note: The value of these bits increments with each expected trail trace identifier
memory access (when these bits are Fh, a memory access will return them to 0h).
Bits 3 to 0: Receive Trail Trace Identifier Address (RTIA[3:0]) – These four bits indicate the receive trail trace
identifier byte to be read by the next memory access. Address 0h indicates the first byte of the receive trail trace
identifier. Note: The value of these bits increments with each receive trail trace identifier memory access (when
these bits are Fh, a memory access will return them to 0h).
Register Name:
Register Description:
Register Address:
Bit #
15
Name
—
Bit #
7
Name
—
TT.RSR
Trail Trace Receive Status Register
(0,2,4,6)F4h
14
13
12
11
—
—
—
—
6
5
4
3
—
—
—
—
10
—
2
RTIM
9
—
1
RTIU
8
—
0
RIDL
Bit 2: Receive Trail Trace Identifier Mismatch (RTIM)
0 = Received and expected trail trace identifiers match.
1 = Received and expected trail trace identifiers do not match; trail trace identifier
mismatch (TIM) declared.
Bit 1: Receive Trail Trace Identifier Unstable (RTIU)
0 = Received trail trace identifier is not unstable
1 = Received trail trace identifier is in an unstable condition (TIU); TIU is declared when eight
consecutive trail trace identifiers are received that do not match either the receive trail trace
identifier or the previously stored current trail trace identifier.
Bit 0: Receive Trail Trace Identifier Idle (RIDL)
0 = Received trail trace identifier is not in idle condition.
1 = Received trail trace identifier is in idle condition. Idle condition is declared upon the reception of
an all zeros trail trace identifier five consecutive times.
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